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/* Copyright (C) 1996, 1997, 1998, 1999, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* Declaration of types and functions for shadow password suite. */
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#ifndef _SHADOW_H
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#define _SHADOW_H 1
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#include <features.h>
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#include <paths.h>
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#define __need_FILE
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#include <stdio.h>
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#define __need_size_t
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#include <stddef.h>
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/* Paths to the user database files. */
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#define SHADOW _PATH_SHADOW
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__BEGIN_DECLS
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/* Structure of the password file. */
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struct spwd
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{
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char *sp_namp; /* Login name. */
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char *sp_pwdp; /* Encrypted password. */
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long int sp_lstchg; /* Date of last change. */
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long int sp_min; /* Minimum number of days between changes. */
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long int sp_max; /* Maximum number of days between changes. */
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long int sp_warn; /* Number of days to warn user to change
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the password. */
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long int sp_inact; /* Number of days the account may be
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inactive. */
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long int sp_expire; /* Number of days since 1970-01-01 until
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account expires. */
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unsigned long int sp_flag; /* Reserved. */
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};
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/* Open database for reading.
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This function is not part of POSIX and therefore no official
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cancellation point. But due to similarity with an POSIX interface
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or due to the implementation it is a cancellation point and
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therefore not marked with __THROW. */
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extern void setspent (void);
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/* Close database.
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This function is not part of POSIX and therefore no official
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cancellation point. But due to similarity with an POSIX interface
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or due to the implementation it is a cancellation point and
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therefore not marked with __THROW. */
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extern void endspent (void);
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/* Get next entry from database, perhaps after opening the file.
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This function is not part of POSIX and therefore no official
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cancellation point. But due to similarity with an POSIX interface
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or due to the implementation it is a cancellation point and
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therefore not marked with __THROW. */
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extern struct spwd *getspent (void);
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/* Get shadow entry matching NAME.
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This function is not part of POSIX and therefore no official
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cancellation point. But due to similarity with an POSIX interface
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or due to the implementation it is a cancellation point and
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therefore not marked with __THROW. */
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extern struct spwd *getspnam (__const char *__name);
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/* Read shadow entry from STRING.
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This function is not part of POSIX and therefore no official
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cancellation point. But due to similarity with an POSIX interface
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or due to the implementation it is a cancellation point and
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therefore not marked with __THROW. */
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extern struct spwd *sgetspent (__const char *__string);
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/* Read next shadow entry from STREAM.
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This function is not part of POSIX and therefore no official
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cancellation point. But due to similarity with an POSIX interface
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or due to the implementation it is a cancellation point and
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therefore not marked with __THROW. */
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extern struct spwd *fgetspent (FILE *__stream);
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/* Write line containing shadow password entry to stream.
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This function is not part of POSIX and therefore no official
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cancellation point. But due to similarity with an POSIX interface
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or due to the implementation it is a cancellation point and
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therefore not marked with __THROW. */
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extern int putspent (__const struct spwd *__p, FILE *__stream);
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#ifdef __USE_MISC
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/* Reentrant versions of some of the functions above.
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These functions are not part of POSIX and therefore no official
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cancellation point. But due to similarity with an POSIX interface
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or due to the implementation they are cancellation points and
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therefore not marked with __THROW. */
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extern int getspent_r (struct spwd *__result_buf, char *__buffer,
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size_t __buflen, struct spwd **__result);
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extern int getspnam_r (__const char *__name, struct spwd *__result_buf,
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char *__buffer, size_t __buflen,
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struct spwd **__result);
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extern int sgetspent_r (__const char *__string, struct spwd *__result_buf,
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char *__buffer, size_t __buflen,
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struct spwd **__result);
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extern int fgetspent_r (FILE *__stream, struct spwd *__result_buf,
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char *__buffer, size_t __buflen,
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struct spwd **__result);
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#endif /* misc */
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/* The simple locking functionality provided here is not suitable for
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multi-threaded applications. */
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/* Protect password file against multi writers. */
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extern int lckpwdf (void) __THROW;
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/* Unlock password file. */
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extern int ulckpwdf (void) __THROW;
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__END_DECLS
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#endif /* shadow.h */
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